Acumen Pharmaceuticals, Inc.
ABOS- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001576885
No open-market purchases or sales by Acumen Pharmaceuticals, Inc. insiders were filed in the last 90 days; 96 institutions reported holding it in 13F filings for Q2 2026, worth $127.8M in total; no superinvestor holds it.
13F holders, Q3 2024
Institutional positions in Acumen Pharmaceuticals, Inc. as of Sep 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 73
- −6 vs. Q2 2024
- Shares held
- 43.6M
- +2.25M (+5.4%) vs. Q2 2024
- Total value
- $107.7M
- +$7.57M (+7.6%) vs. Q2 2024
- New holders
- 11
- 24 more added
- Sold out
- 17
- 21 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ABOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 96 | $127.8M |
| Q1 2026 | 84 | $108.5M |
| Q4 2025 | 71 | $75.2M |
| Q3 2025 | 69 | $61.1M |
| Q2 2025 | 71 | $43.6M |
| Q1 2025 | 81 | $44.8M |
| Q4 2024 | 80 | $73.2M |
| Q3 2024 | 73 | $107.8M |
| Q2 2024 | 81 | $105.5M |
| Q1 2024 | 80 | $176.3M |
| Q4 2023 | 67 | $147.8M |
| Q3 2023 | 66 | $181.4M |
| Q2 2023 | 53 | $126.6M |
| Q1 2023 | 62 | $114.0M |
| Q4 2022 | 60 | $158.0M |
| Q3 2022 | 50 | $278.4M |
| Q2 2022 | 47 | $120.5M |
| Q1 2022 | 57 | $106.1M |
| Q4 2021 | 52 | $172.9M |
| Q3 2021 | 41 | $357.4M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Acumen Pharmaceuticals, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 14,932,063 | $37.0M | 0.43% | 00.0% | Unchanged |
| Sands Capital Ventures, LLC | 3,417,075 | $8.47M | 2.38% | 00.0% | Unchanged |
| Franklin Resources Inc | 3,549,069 | $8.34M | 0.00% | +181,451+5.4% | Added |
| BlackRock, Inc. | 2,331,530 | $5.78M | 0.00% | +2,331,530 | New |
| Rock Springs Capital Management LP | 2,300,059 | $5.70M | 0.19% | 00.0% | Unchanged |
| FMR LLC | 2,028,117 | $5.03M | 0.00% | +6,014+0.3% | Added |
| Vanguard Group Inc | 1,934,039 | $4.80M | 0.00% | +37,090+2.0% | Added |
| Millennium Management LLC | 1,834,753 | $4.55M | 0.00% | −119,332−6.1% | Reduced |
| Knollwood Investment Advisory, LLC | 1,628,510 | $4.04M | 0.43% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 939,603 | $2.33M | 0.01% | 00.0% | Unchanged |
| Laurion Capital Management LP | 867,046 | $2.15M | 0.14% | −311,292−26.4% | Reduced |
| Geode Capital Management, LLC | 864,528 | $2.14M | 0.00% | +52,395+6.5% | Added |
| Price T Rowe Associates Inc | 849,619 | $2.11M | 0.00% | −196,745−18.8% | Reduced |
| Hudson Bay Capital Management LP | 636,000 | $1.58M | 0.01% | −34,000−5.1% | Reduced |
| Pathstone Holdings, LLC | 517,283 | $1.28M | 0.01% | +37,060+7.7% | Added |
| State Street Corp | 516,406 | $1.28M | 0.00% | +79,841+18.3% | Added |
| Jane Street Group, LLC | 487,596 | $1.21M | 0.00% | +59,907+14.0% | Added |
| Two Sigma Advisers, LP | 469,100 | $1.16M | 0.00% | +77,000+19.6% | Added |
| Two Sigma Investments, LP | 309,507 | $767.6K | 0.00% | −1,290−0.4% | Reduced |
| Northern Trust Corp | 308,850 | $765.9K | 0.00% | +238,762+340.7% | Added |
| Renaissance Technologies LLC | 306,100 | $759.1K | 0.00% | −32,000−9.5% | Reduced |
| Ikarian Capital, LLC | 266,435 | $660.8K | 0.21% | 00.0% | Unchanged |
| Morgan Stanley | 239,200 | $593.2K | 0.00% | +151,391+172.4% | Added |
| Goldman Sachs Group Inc | 145,861 | $361.7K | 0.00% | +94,809+185.7% | Added |
| TD Asset Management Inc | 139,206 | $345.2K | 0.00% | −9,594−6.4% | Reduced |
| Bank of America Corp | 138,724 | $344.0K | 0.00% | +15,999+13.0% | Added |
| Bridgeway Capital Management, LLC | 137,400 | $340.8K | 0.01% | −11,000−7.4% | Reduced |
| Group One Trading, L.P. | 122,589 | $304.0K | 0.01% | −2,435−1.9% | Reduced |
| Charles Schwab Investment Management Inc | 108,743 | $269.7K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 92,983 | $230.6K | 0.00% | −33,439−26.5% | Reduced |
| Catalyst Financial Partners LLC | 89,699 | $222.5K | 0.04% | 00.0% | Unchanged |
| Rhumbline Advisers | 88,484 | $219.4K | 0.00% | +36,161+69.1% | Added |
| Qube Research & Technologies Ltd | 82,702 | $205.1K | 0.00% | +6,833+9.0% | Added |
| Nuveen Asset Management, LLC | 78,446 | $194.5K | 0.00% | +21,782+38.4% | Added |
| JPMorgan Chase & Co | 63,066 | $156.4K | 0.00% | +45,189+252.8% | Added |
| Barclays PLC | 61,997 | $153.8K | 0.00% | +40,551+189.1% | Added |
| Dimensional Fund Advisors LP | 56,556 | $140.3K | 0.00% | +80.0% | Added |
| American Century Companies Inc | 54,543 | $135.3K | 0.00% | +9,099+20.0% | Added |
| Susquehanna International Group, LLP | 54,019 | $134.0K | 0.00% | −61−0.1% | Reduced |
| Prelude Capital Management, LLC | 52,417 | $130.0K | 0.01% | +6,007+12.9% | Added |
| Manufacturers Life Insurance Company, The | 52,333 | $129.8K | 0.00% | −7,663−12.8% | Reduced |
| Boothbay Fund Management, LLC | 51,708 | $128.2K | 0.00% | −33,750−39.5% | Reduced |
| Citigroup Inc | 30,592 | $75.9K | 0.00% | +21,177+224.9% | Added |
| Intrepid Financial Planning Group LLC | 30,150 | $74.8K | 0.03% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 23,015 | $57.1K | 0.00% | +23,015 | New |
| UBS Group AG | 22,751 | $56.4K | 0.00% | +9,965+77.9% | Added |
| Corebridge Financial, Inc. | 22,429 | $55.6K | 0.00% | −138−0.6% | Reduced |
| Virtu Financial LLC | 22,255 | $55.0K | 0.00% | −2,147−8.8% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 21,903 | $54.3K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 21,782 | $54.0K | 0.00% | +21,782 | New |
| Wells Fargo & Company | 21,258 | $52.7K | 0.00% | +827+4.0% | Added |
| Jump Financial, LLC | 21,200 | $52.6K | 0.00% | −28,167−57.1% | Reduced |
| Acadian Asset Management LLC | 18,643 | $46.0K | 0.00% | +18,643 | New |
| Invesco Ltd. | 18,189 | $45.1K | 0.00% | −797−4.2% | Reduced |
| Pinnacle Wealth Management Advisory Group, LLC | 18,020 | $44.7K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 17,772 | $44.0K | 0.00% | +17,772 | New |
| Deutsche Bank AG | 17,055 | $42.3K | 0.00% | −16,594−49.3% | Reduced |
| Citadel Advisors LLC | 16,912 | $41.9K | 0.00% | −66,100−79.6% | Reduced |
| Fortitude Advisory Group L.L.C. | 13,300 | $33.0K | 0.02% | +13,300 | New |
| Advisor Group Holdings, Inc. | 10,400 | $25.8K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 9,800 | $24.3K | 0.00% | −32,600−76.9% | Reduced |
| Royal Bank of Canada | 5,941 | $15.0K | 0.00% | +1,896+46.9% | Added |
| Ameritas Investment Partners, Inc. | 4,110 | $10.2K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,910 | $9.70K | 0.00% | −22,578−85.2% | Reduced |
| Legal & General Group Plc | 3,635 | $9.02K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 3,039 | $7.54K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 1,451 | $4.00K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 1,500 | $3.72K | 0.00% | +1,500 | New |
| Sterling Capital Management LLC | 133 | $330 | 0.00% | +133 | New |
| Nisa Investment Advisors, LLC | 100 | $248 | 0.00% | +100 | New |
| Capital Performance Advisors LLP | 52 | $129 | 0.00% | +52 | New |
| Planning Capital Management Corp | 5 | $13 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 168 | $0 | 0.00% | +168 | New |
| Man Group plc | 0 | $0 | 0.00% | −105,777−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −73,619−100.0% | Sold out |
| Murchinson Ltd. | 0 | $0 | 0.00% | −56,250−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −55,007−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −30,885−100.0% | Sold out |
| Marathon Trading Investment Management LLC | 0 | $0 | 0.00% | −26,298−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −18,801−100.0% | Sold out |
| Pinnacle Associates Ltd | 0 | $0 | 0.00% | −18,020−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −15,304−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −13,650−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −11,479−100.0% | Sold out |
| Gladius Capital Management LP | 0 | $0 | 0.00% | −10,939−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −8,880−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −4,018−100.0% | Sold out |
| Sandy Spring Bank | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Kelly Financial Services LLC | 0 | $0 | 0.00% | −944−100.0% | Sold out |
| Redwood Wealth Management Group, LLC | 0 | $0 | 0.00% | −800−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |
| Susquehanna Fundamental Investments, LLC | – | – | – | – | Not filed |